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The second message is followed almost immediately by a third
and final message indicating that the computer is about to put
itself to sleep. When time is up, the computer goes to sleep
automatically to protect the contents of RAM.
If you continue working until the computer goes to sleep
automatically, you may not be able to wake it again until you
recharge the depleted battery in the computer for 15 minutes.
If you can’t plug in the power adapter, the contents of RAM are
retained in sleep for at least 2 days. If you leave the battery in the
computer and recharge it within 2 days, you should be able to
wake the computer and resume work where you left off.
Important: Recharge a depleted battery as soon as possible.
Leaving a depleted battery in the computer for longer than 2
weeks (especially in a hot location, such as the trunk of a car)
may damage the battery so that it can’t be recharged. If this
happens, you need to replace the battery.
Recharging the battery
There are two ways to recharge:
n Plug in the power adapter to recharge the battery without
removing it from the computer, or
n Remove the battery and recharge it in the (optional)
recharger.
Recharging with the power adapter
Plug in the power adapter as shown.
Power adapter port
Chapter 7: Power Management 103